On the composition and structure of the community of mycelial fungi in the bottom sediments of the White Sea
Abstract
50 samples of bottom sediments of Kandalaksha Bay of the White Sea were taken in 2016–2017 from depths of 1.5–15 meters of which 1419 colonies of culturable filamentous fungi were obtained. Based on morphological and cultural features, a total of 136 morphotypes were classified, 81 of these were identified to a species. We discovered 13 species new to the White Sea. The most common were Tolypocladium cylindrosporum, Penicillium chrysogenum, Tolypocladium inflatum, Penicillium glabrum and the anamorph of Pseudogymnoascus pannorum. The dominance of ascomycetous fungi was a common characteristic of the mycobiota due to the anamorphic species, and the class Sordariomycetes was the most prevailing group. Assessment of species richness using a cumulative curve and the calculation of the expected total number of species adjusted using Chao2 showed that about 81% of the species diversity was found. The ordination of samples by the nMDS with the ANOSIM test showed the high importance of combining the samples into groups based on the year of sampling and type of sediment, as well as the year of sampling and type of ecotope. Therefore, the type of sediment associated with the type of coast and the presence of fresh inflow is the most important factor for the formation of mycobiota. Moreover, the communities of mycelial fungi change from year to year in the studied bottom sediments.
About the Authors
E. N. Bubnova
N.A. Pertsov White Sea Biological Station, Moscow State University
Russian Federation
Russian Federation
Leninskiye Gory 1–12, 119234
O. A. Grum-Grzhimailo
N.A. Pertsov White Sea Biological Station, Moscow State University
Russian Federation
Leninskiye Gory 1–12, 119234
Russian Federation
Leninskiye Gory 1–12, 119234
V. V. Kozlovsky
Marine research center, Moscow State University
Russian Federation
Russian Federation
office 402, MSU Science park, Leninskie Gory 1–77, 119234
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Review
For citations:
Bubnova E.N., Grum-Grzhimailo O.A., Kozlovsky V.V. On the composition and structure of the community of mycelial fungi in the bottom sediments of the White Sea. Vestnik Moskovskogo universiteta. Seriya 16. Biologiya. 2020;75(3):182-187. (In Russ.) https://doi.org/582.28:574.5
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